package Test2;

import java.util.*;

public class Main {
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        int year=scanner.nextInt();
        if (year%4==0&&year%100!=0||year%400==0){
            System.out.println("yes");
        }else {
            System.out.println("no");
        }
    }
}
